Old 300 Solar Center, LLC
Ørsted · Fort Bend County · ERCOT
Old 300 Solar Center is a utility-scale solar project in Fort Bend County, Texas. EIA's May 2026 inventory reports one 430 MWac operating photovoltaic generator, 539.61 MWdc, and an October 2024 registry operating date. Ørsted's current project page reports 430 MW of solar and a co-located 250 MWh, two-hour battery project; Ørsted separately lists the solar project in commercial operation since 2023. The different dates describe project-level and EIA registry milestones and should not be treated as the same event.
Overview
Key fields
- Solar AC capacity
- 430 MW
EIA May 2026
- Solar DC capacity
- 539.61 MW
EIA May 2026
- Storage energy
- 250 MWh
Ørsted current project page
- Storage duration
- 2 hours
Ørsted current project page
- Photovoltaic modules
- Approximately 1 million
Ørsted
- Registry anchor
- Plant 64133
Old 300 Solar Center, LLC
Resource stack
- 4 resources
BCK_ESR1 · BCK_ESR2
Profile
- Grid role
- Utility-scale solar generation with co-located battery storage in ERCOT's Houston area.
- Solar capacity
- EIA reports 430 MWac and 539.61 MWdc; Ørsted reports 430 MW of solar.
- Storage scope
- Ørsted's current project page reports 250 MWh of two-hour battery storage.
- Physical build
- Ørsted's 2020 investment announcement specified about one million bifacial modules from JA Solar and LONGi and SMA America inverters.
Structured profile
- Solar capacity
- 430 MWac / 539.61 MWdc
EIA May 2026
- Storage
- 250 MWh / 2 hours
Ørsted current project page
- Registered operator
- Old 300 Solar Center, LLC
EIA May 2026
- Parent developer
- Ørsted
Ørsted
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 2222 | 430 MW 430 MW summer | Solar Photovoltaic Solar · PV | Oct 2024 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 430 MW
- National rank
- #15
- TX rank
- #7
Monthly generation
Download CSVMonthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
ERCOT disclosed dispatch
4 ERCOT market resources · Battery / storage, Solar
Output by hourlocal time · 90 days through May 22, 2026
Latest disclosed outputhourly · 2 weeks ending May 22, 2026
Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
ERCOT public disclosuresOperating context
ERCOT market recordsNearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Owner / operator | Owner / operator for Old 300 Solar Center, LLC | |
| Module supplier | Module supplier for Old 300 Solar Center, LLC | |
| Market resources | BCK_ESR1, BCK_ESR2, BCK_UNIT1, BCK_UNIT2 | Linked ERCOT resources. |
| Grid selection | plant:plant-64133 | Canonical asset page /ercot/assets/plant/old-300-solar-center-llc. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Ørsted announced final investment decisionØrsted Old ...
Ørsted approved the 430 MWac solar project and named the module and inverter suppliers.
- EIA generator operating dateEIA May 202...
EIA reports October 2024 for the 430 MW operating generator record.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
Related assets
Similar plants ranked by technology, capacity, and distance.